Commit Briefs
all: remove Linux 2.4 vs 2.6 detection
Linux 2.4 is dead. (The libthread code hasn't worked for Linux 2.4 for a long time.)
9c, 9l: use $TMPDIR if available (#272)
NixOS sandboxed builds (at least on Mac) don't have access to /tmp, and this should be better POSIX.
9l: support Linux version 5.0+ (#274)
Update 9l to support Linux 5.x.
9l: accept Linux kernel version 4.x
Fixes #114.
9l: link with -lresolv on Linux
LGTM=rsc R=rsc https://codereview.appspot.com/136520044
all: DragonFly port.
Fix compilation problems, libdraw still doesn't work right yet. LGTM=rsc R=rsc https://codereview.appspot.com/67820046
9l: remove debug print
R=rsc http://codereview.appspot.com/6402049
9l: fix for Linux 3.x (thanks Christopher Brannon)
R=rsc http://codereview.appspot.com/6395047
fix INSTALL warnings
R=rsc http://codereview.appspot.com/6258060
build: OS X 64-bit build
R=rsc http://codereview.appspot.com/4838047
9c, 9l: allow CC9=clang
R=rsc CC=codebot http://codereview.appspot.com/217045